phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('5e8d639fce2c862d11aab8ab273ed576', -1, 1713305602, 1713305602, '12bcafb6', 5, 0, 0)

Line : 187
File : sessions.php